EP0202942B1 - Cartouche pour mones avec dispositif de fermeture déverrouillable - Google Patents

Cartouche pour mones avec dispositif de fermeture déverrouillable Download PDF

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Publication number
EP0202942B1
EP0202942B1 EP86303897A EP86303897A EP0202942B1 EP 0202942 B1 EP0202942 B1 EP 0202942B1 EP 86303897 A EP86303897 A EP 86303897A EP 86303897 A EP86303897 A EP 86303897A EP 0202942 B1 EP0202942 B1 EP 0202942B1
Authority
EP
European Patent Office
Prior art keywords
lead
passage
cartridge
tongue
leads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86303897A
Other languages
German (de)
English (en)
Other versions
EP0202942A1 (fr
Inventor
Hidehei C/O Kotobuki & Co. Ltd. Kageyama
Yoshihide C/O Kotobuki & Co. Ltd. Mitsuya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kotobuki and Co Ltd
Original Assignee
Kotobuki and Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kotobuki and Co Ltd filed Critical Kotobuki and Co Ltd
Priority to AT86303897T priority Critical patent/ATE51587T1/de
Publication of EP0202942A1 publication Critical patent/EP0202942A1/fr
Application granted granted Critical
Publication of EP0202942B1 publication Critical patent/EP0202942B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/003—Propelling pencils with lead sections or lead cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/04—Writing-core feeding mechanisms with the writing-cores brought into position by gravity
    • B43K21/045—Writing-core feeding mechanisms with the writing-cores brought into position by gravity with writing-cores automatically replaced from magazines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K31/00—Writing implement receptacles functioning as, or combined with, writing implements
    • B43K31/005—Distributors for leads, cartridges and the like

Definitions

  • the present invention relates to a lead cartridge with an openable capping structure for a so-called cartridge type mechanical pencil.
  • a cap 1 which covers the open end of a lead cartridge 2 is removed and thrown away, and then the lead cartridge 2 is fitted in the cylinder of the mechanical pencil with the front end open. Accordingly, the leads contained in the lead cartridge are liable to fall out of the lead cartridge 2 if the open end of the lead cartridge is directed downwards even slightly. Therefore, in fitting the cartridge into the cylinder, the lead cartridge must be held with the open end thereof directed upwards and must be fitted carefully into the cylinder of the mechanical pencil.
  • the conventional mechanical pencil accommodates the lead cartridge 2 containing a plurality of leads, and a lead guide 7 detachably holding the lead cartridge 2 in the cylinder 3 thereof, and the residual leads are returned into the lead cartridge 2 in removing the lead cartridge from the cylinder 3. Therefore, the inner surface of the open end of the lead cartridge 2 needs to be tapered to form a taper surface 21 and an inner contraction needs to be formed in a portion of the cylinder 3, so that the inside diameter of the cylinder is reduced partly in a portion corresponding to the inner contraction 31 limiting the outside diameter of the lead cartridge 2, and thereby the capacity of the lead cartridge 2 is reduced. Furthermore, since it is impossible to form such a cylinder 3 having such an inner contraction 31 through extrusion moulding, the cylinder 3 needs to be formed through injection moulding, which requires a moulding die which is more expensive than that for extrusion moulding.
  • P-U-54 51052 discloses a pencil cartridge having a simple resiliently deformable obstruction mounted in one end to prevent the leads contained therein from inopportune expulsion.
  • the obstruction is provided with a substantially axial orifice which, when the cartridge is inserted in the pencil, is expanded by the intrusion therein of a projection provided in the lead guide.
  • the orifice is opened sufficiently to allow the passage therethrough of a single pencil lead which is received in a channel in the projection into the lead guide.
  • FIGs 4 to 8 illustrate the first embodiment of the present invention.
  • An openable capping structure 10 employed in the first embodiment has a rear portion 102 to be fitted in a lead cartridge 2 and three chucking tongues 100, 101 and 101a ( Figure 6) or two chucking tongues 100 and 101 ( Figure 7) formed by radially slotting a front portion.
  • the chucking tongues 100, 101 (and 101a) have a tendency to bend elastically radially inward and are capable of being radially warped outward to form a lead passage 11 capable of allowing the lead 5 having a different diameter as well as those having the the same diameter to pass therethrough.
  • the front end of the lead passage 11 is tapered rearward to form a taper surface 105.
  • the oblique extensions 106a and 106b (and 106c) are formed integrally with the chucking tongues 100 and 101 (and 101 a), respectively, so as to extend obliquely rearward.
  • the diameter of a circle passing the outer end of the oblique extensions 106a and 106b (and 106c) is greater than the diameter of the chucking tongue receiving hole 72a, 77 of the lead guide 7.
  • the lead passage 11 is opened while, when the oblique extensions 106a, 106b and 106c are disengaged from the lead guide 7, the lead passage 11 is closed.
  • Figure 8 illustrates a variation of the first embodiment.
  • a taper projection 76a tapered rearward is formed in the front end of the chucking tongue receiving hole 72a of the lead guide 7.
  • the small end of the taper projection 76a is slightly smaller than the diameter of the lead passage 11 when closed.
  • FIGS 9 and 10 illustrate a second embodiment of the present invention.
  • a lead guide 7 to be used in combination with the second embodiment has a front cylindrical portion 70 and a rear cylindrical portion 73 extending coaxially with the front cylindrical portion 70, as illustrated in Figures 9 and 10.
  • the lead guide 7 is designed to feed leads 5 one by one.
  • a lead chuck receiving hole 74 for receiving the rear end of a lead chuck 6 is formed in the front end of the front cylindrical portion 70, and a lead guide passage 75 having a diameter allowing the passage of only one lead 5 at a time is formed through the front cylindrical portion 70 coaxially with the lead chuck receiving hole 75.
  • a lead cartridge receiving hole 77 having a second bearing surface is formed in the rear end of the rear cylindrical portion 73.
  • a taper surface 78 for guiding a lead stopping disk 10A, which will be described later, and a cylindrical surface 79, for locating the lead stopping disk so that the two lead passages 11A and 11 B are aligned, are formed in the bottom wall of the lead cartridge receiving hole 77.
  • Receiving hole (passage) 77 and taper surface 78 form a second bearing surface being engageable with the first bearing surface 9 of the tongue part.
  • An openable capping structure in the second embodiment is formed of an elastic material, such as a rubber or a synthetic resin, and is fitted in the front end of a lead cartridge 2, in a manner as shown in Figures 9 and 10.
  • the openable capping structure 10 has a cylindrical body (mounting part) 10B provided with the coaxial first lead passage 11B and the lead stopping disk (tongue part) 10A provided with the coaxial second lead passage 11A.
  • the lead stopping disk 10A is dislocated relative to the cylindrical body 10B so that the first lead passage 11 B and the second lead passage 11A disagree with each other.
  • the lead stopping disk 10A is connected to the cylindrical body 10B by an arm obliquely extending from the cylindrical body 10B.
  • the lead passages 11A and 11 B having the former size allow the passage of the leads 5 having a specific size, such as 0.5 mm, 0.7 mm or 0.9 mm, when the lead cartridge 2 is joined to the lead guide 7 and thereby the lead passages 11Aand 11 B are aligned with each other
  • the lead passages 11A and 11 b having the latter size allow the passage of the leads 5 having different diameters, for example 0.5 mm and 0.7 mm, respectively, when the lead cartridge 2 is joined to the lead guide 7 and thereby the lead passage 11A and 11B are aligned with each other.
  • the lead stopping disk 10A is deviated relative to the cylindrical body 10B by the resilience of the arm interconnecting the lead stopping disk 10A and the cylindrical body 10B to a position shown in Figure 9. Consequently, the lead passages 11A and 11B disagree with each other to inhibit the passage of the lead 5 therethrough.
  • the second embodiment has the same effect as that of the foregoing embodiment.
  • the lead cartridge according to the previously described embodiments of the present invention is provided with an openable capping structure having chucking tongues which are warped radially outward to open a lead passage when the lead cartridge is joined elastically to the lead guide of a mechanical pencil and are restored to the original position by their own resilience and/or a compressive member to close the lead passage when the lead cartridge is separated from the lead guide. Accordingly, there is no possibility of the leads contained in the lead cartridge falling out of the lead cartridge in replacing the lead cartridge and, furthermore; the lead remaining in the mechanical pencil can be chucked by the chucking tongues and can be withdrawn from the mechanical pencil. Therefore, the breakage of the lead remaining within the mechanical pencil and the clogging of the lead chuck of the mechanical pencil with the broken pieces of the lead does not occur and the lead cartridge can be very simply and easily replaced.
  • the openable capping structure described is applicable to lead cartridges for containing leads having different diameters as well as to lead cartridges for containing leads having the same diameter, and does not include any any part to be thrown away. Furthermore, since the outer cylinder of a mechanical pencil to be used in combination with the lead cartridge of the present invention need not have any inner contraction, the outer cylinder can be formed through extrusion moulding and a lead cartridge having an increased capacity can be inserted in the outer cylinder.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Claims (3)

1. Cartouche à mines pour un porte-mines ou un crayon mécanique incluant un guide-mines (7) et comprenant une cartouche dont le corps (2) constitue une enceinte pour conserver un certain nombre de mines de crayon, une structure de capuchon (10) placée à l'extrémité ouverte du corps (2) dont l'extrémité est reçue de façon amovible dans un passage complémentaire (77) dudit guide-mines (7), ce qui a pour conséquence qu'une partie formant languette de cette structure (10) est déplacée élastiquement et ouvre passage qui permet le transfert d'une seule mine entre le corps (2) et un passage d'alimentation (75) prévu dans le guide-mines, comme il est connu par la publication JP-U-54 051 052, est caractérisée par une première portée (106a, b, c) prévue sur la languette et par une seconde portée prévue à l'intérieur du passage (77) orientée vers l'axe de ce dernier (77), lesdites portées étant inclinées entre elles de façon à venir au contact l'une de l'autre quand elles sont reçues dans l'extrémité du passage (77) afin de déplacer la languette, en ouvrant ainsi le passage de la structure de capuchon.
2. Cartouche selon la revendication 1, caractérisée en ce que la structure (10) possède, au moins, deux languettes (100, 101) et en ce que la première portée de chaque languette (100, 101) est constituée par un prolongement oblique (106a, 106b) qui s'avance radialement vers l'extérieur sur chaque languette, ce qui fait que le contact avec lesdites portées provoque un déplacement desdites portées (100, 101) par une action de levier.
3. Cartouche selon la revendicaton 1, caractérisée en ce que la structure (10) comprend un élément de montage (10b), ce qui fait que l'extrémité ouverte comporte une première ouverture (11b) et une languette (10a) montée élastiquement déplaçable et précontrainte pour obstruer normalement la première ouverture (11b), et qui est déplacée par un contact avec lesdites portées de façon à amener une second ouverture (11a) dans l'alignement de la première ouverture (11b) de façon à supprimer l'obstruction et à permettre à une mine de passer dans lesdites ouvertures.
EP86303897A 1985-05-23 1986-05-22 Cartouche pour mones avec dispositif de fermeture déverrouillable Expired EP0202942B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86303897T ATE51587T1 (de) 1985-05-23 1986-05-22 Minenpatrone mit einer kappenkonstruktion, die geoeffnet werden kann.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP75697/85 1985-05-23
JP1985075697U JPH0439029Y2 (fr) 1985-05-23 1985-05-23

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP88113480.3 Division-Into 1986-05-22

Publications (2)

Publication Number Publication Date
EP0202942A1 EP0202942A1 (fr) 1986-11-26
EP0202942B1 true EP0202942B1 (fr) 1990-04-04

Family

ID=13583664

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88113480A Expired EP0302532B1 (fr) 1985-05-23 1986-05-22 Cartouche pour mines avec dispositif de fermeture verrouillable
EP86303897A Expired EP0202942B1 (fr) 1985-05-23 1986-05-22 Cartouche pour mones avec dispositif de fermeture déverrouillable

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP88113480A Expired EP0302532B1 (fr) 1985-05-23 1986-05-22 Cartouche pour mines avec dispositif de fermeture verrouillable

Country Status (10)

Country Link
US (1) US4998837A (fr)
EP (2) EP0302532B1 (fr)
JP (1) JPH0439029Y2 (fr)
AR (1) AR243438A1 (fr)
AT (2) ATE51587T1 (fr)
AU (1) AU590764B2 (fr)
BR (1) BR8602348A (fr)
DE (2) DE3683855D1 (fr)
MX (1) MX171546B (fr)
PH (1) PH26666A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU595610B2 (en) * 1986-08-29 1990-04-05 Kotobuki & Co. Ltd Lead cartridge for mechanical pencil
JPH0513596Y2 (fr) * 1986-12-29 1993-04-09
JPH0513595Y2 (fr) * 1986-12-29 1993-04-09
JPH0617586Y2 (ja) * 1987-07-24 1994-05-11 株式会社寿 芯カ−トリツジの開閉装置
US4984288A (en) * 1989-06-07 1991-01-08 Petterson Tor H Lead refill cartridge for mechanical pencil
ES2087002B1 (es) * 1991-10-21 1997-03-01 Kotobuki & Co Ltd Receptaculo de distribucion de minas para lapicero
GB9406837D0 (en) * 1994-04-07 1994-06-01 Parker Pen Bv Propelling pencil mechanism
US7913774B2 (en) 2005-06-15 2011-03-29 Schlumberger Technology Corporation Modular connector and method
US7543659B2 (en) * 2005-06-15 2009-06-09 Schlumberger Technology Corporation Modular connector and method
JP4886664B2 (ja) * 2007-09-25 2012-02-29 株式会社壽 芯カートリッジ及びその芯カートリッジが組み込まれるシャープペンシル

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190914277A (en) * 1909-06-18 1910-06-09 William Edward Robson Magazine Pencils and the like.
US1592502A (en) * 1924-11-24 1926-07-13 Samuel Kanner Lead pencil
GB372116A (en) * 1931-05-28 1932-05-05 Edward Charles Clark A self-sealing device for collapsible and other tubes or containers
US2045774A (en) * 1934-11-19 1936-06-30 Herman C Hirschy Fountain pen
FR830448A (fr) * 1937-04-29 1938-07-29 Fend Geb Porte-mine à poussoir
GB577096A (en) * 1944-10-02 1946-05-03 Waldemar Lazare Colassi Improvements in or relating to reservoir pens
US2626592A (en) * 1946-07-20 1953-01-27 Edwin C Hedler Mechanical push-type lead pencil
US2620098A (en) * 1950-07-12 1952-12-02 Clifford B Kinley Bottle cap with outlet means and having a resiliently supported closure member
DE2724317A1 (de) * 1977-05-28 1978-12-07 Faber Castell A W Fuellminenstift mit minenvorratsbehaelter
JPS5451052U (fr) * 1977-09-13 1979-04-09
JPS54138730A (en) * 1978-04-19 1979-10-27 Ancos Co Ltd Rotary mechanical pencil
DE2815695C2 (de) * 1978-04-12 1983-08-11 Fa. A.W. Faber-Castell, 8504 Stein Füllminenstift mit Minen-Vorschubmechanik und Bremselement
GB2023508B (en) * 1978-06-14 1982-04-28 Chun Liang Kuo Writing implement
DE3042283A1 (de) * 1980-11-08 1982-06-09 Fa. A.W. Faber-Castell, 8504 Stein Fuellminenstift mit auswechselbarem minenvorratsbehaelter
JPS595589Y2 (ja) * 1981-07-17 1984-02-20 株式会社 寿 ノツク式シヤ−プペンシル
US4603990A (en) * 1982-09-10 1986-08-05 Kotobuki & Co., Ltd. Mechanical pencil with refill cartridge
US4500220A (en) * 1982-09-20 1985-02-19 Pentel Kabushiki Kaisha Mechanical pencil with removable lead feed cover
JPS5997089A (ja) * 1982-11-26 1984-06-04 株式会社東芝 沸騰水形原子炉
GB2146588A (en) * 1983-09-14 1985-04-24 Genius Lee Ink cartridge sign pen
DE3401647C1 (de) * 1984-01-19 1986-01-02 A.W. Faber-Castell Unternehmensverwaltung GmbH & Co, 8504 Stein Minenpatrone
US4619539A (en) * 1984-02-13 1986-10-28 Kotobuki & Co, Ltd. Mechanical pencil equipped with lead-storing cartridge
AU595610B2 (en) * 1986-08-29 1990-04-05 Kotobuki & Co. Ltd Lead cartridge for mechanical pencil

Also Published As

Publication number Publication date
ATE72417T1 (de) 1992-02-15
DE3683855D1 (de) 1992-03-19
ATE51587T1 (de) 1990-04-15
MX171546B (es) 1993-11-05
US4998837A (en) 1991-03-12
AR243438A1 (es) 1993-08-31
JPS61191284U (fr) 1986-11-28
EP0302532B1 (fr) 1992-02-05
AU590764B2 (en) 1989-11-16
EP0302532A1 (fr) 1989-02-08
PH26666A (en) 1992-09-04
DE3670045D1 (de) 1990-05-10
JPH0439029Y2 (fr) 1992-09-11
BR8602348A (pt) 1987-01-21
AU5781286A (en) 1986-11-27
EP0202942A1 (fr) 1986-11-26

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